#include <bits/stdc++.h>

using namespace std;
#define int long long
const int inf = 0x3f3f3f3f;

void solve()
{
    int n;
    cin >> n;
    vector<int> a(n);
    for (int i = 0; i < n; i++) cin >> a[i];
    vector<int> suf(n), pre(n + 1, 0);
    int m = -1;
    for (int i = 0; i < n; i++)
    {
        m = max(m, a[i]);
        suf[i] = m;
    }
    // reverse(suf.begin(),suf.end());
    for (int i = n - 1; i >= 0; i--) pre[i] += pre[i + 1] + a[i];
    for (int i = n - 1; i >= 0; i--)
    {
        cout << suf[i] + pre[i + 1] << ' ';
    }
    cout << endl;
}

signed main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    int _ = 1;
    cin >> _;
    while (_--)
    {
        solve();
    }
    return 0;
}